Molding-machine.



W. A. DENNEY.

MOLDING MACHINE.

APPLICATION FILED MAR. 9, 1914.

'1,1 1 1,529. Patented p 22, 1914.

2 SHEETS-SHEET 1.

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W. A. DENNEY.

MOLDING MACHINE.

APPLICATION FILED MAR. 9, 1914.

1 1 1 1 ,529, Patented Sept. 22, 1914.

2 SHEETS-SHEET 2 l i To all whom it may concern:

..WITE T TE TPA EN c arion l WILL IAMA. Dnmvnxon QUINGY, inmivois, assleivon roe. a. LITTLE M TA W EEL COMPANY, 01? QUINCY, ILLINOIS, COR-PORn'JII'Z)Nl Be it known that I, .VVILLIAM AQDENNn a citizen of the United States of America, residing at Quincy, in the county of Adams andSta-te of Illinois, have invented certain new and useful Improvements in Molding- Machines, of vvhichthe' following is a full,

clear, and exact description, reference being had to the accompanying drawings, forming partofthis specification. QMy invention ,relates tofa moldmg chine and has for its object the productlon of eans for perating patterns to facilitate the work ofufo'rming sandmoldfs.

The preferred form. of my invention comprises a flasksupportfor supporting a flask member, and pattern holders operable to shiftpatternfsections soas to properly locate the pattern int'he flask member, and to 'vvithdrawithe pattern from the mold after the ramming operation The machine preferably includes two pattern holders operable to release the sectionalpatterns from the mold section Without rapping the patterns,

one of the pattern sections being moved upvvardly from, theitopiof themold section, While the other pattern. section is shifted downwardly from the bottom of -the mold section.

machine embodying the features of my inc vention. Fig. 11 is a vertica l section of the withdrawn; 1 from ,the inol'd member.

upper. portion of the machine, looking the direction indicated: by. th 1 arrow n Fig. I and shovving thepattern sections III-is a horizontal section taken on the line 111 111, I. FigQIVj is a perspective view of the separablepatternsections; Fig. V is a perspective view of the upper portlon of the lift rod or-su'pport for the upper pattern section. v w p p In a the accompanying drawings: 1 'des1gnates a base "surmounted by corner posts 2;

and 3 designates faifiask support-secured to the. upper ends jofsaid cornerposts; The flasksupport is formedvvitl alarge opening for the receptionof aYpat'tern A and a flasktmember B seated upon theflask sup port isso-positioned thatitslovve'r edge.

overlaps the rmargin ofpattern section A.

Upon referring to Fig. I it ill be noted that the pattern'section A serves as a closure for the bottomof the fiaskmember and that the 'flat face 4: of said patterni'sectionis' flush interlock with said Figure I is a verticalsection 0a a' molding Serial No. 823,374.

The pattern section Ais formed With a-cen- Specification of Letters Patent. Patented Septf22y1914. hpplioation filedllviareh9,1914.

ivith the top face of the flask support tral boss 5, lugs 6, and core prints 7 radithe invention is not in anyway limited to thespecific type of pattern I haveshown and described. i

The; pattern shovvn omprises the bottom section A and a to section C adapted to bottom" section, the bottom'patte'rn section being provided With a central opening 9 adapted to receive a bifurcated stem 10 projecting from the top patternsection. In uniting the pattern sections for the moldlng operatio n lugs vll extend- 111g from a cross-bar securedto the stem 10,

are passed through notches 12 in the bottom patternsection Fig. IV), and the top pattern section isthen turned to positively interlock the pattern sectionsil-thereby holding the patterns in their ;,proper relative positions While the sand is rammed in the flask memberJ" The means foiifsupporting and operating the separable pattern sections comprises a vertically movable sleeve 13 having a: head 14 at its upper end, .said sleevebeingslidably mounted ina' hollovv post 15;. The

bottom pattern section A is seated on and v'atingffrom said lugs; If desired, the lower secured "to theheadld. Alverticallymov+ able lift rod 16, slidably mount-edin the sleeve 13, is provided with a flat upperend which extends into the bifurcated stem 10 onj'the pattern section C; The lift rod is i so fitted to. the top pattern sectionth at the liftrod ,may -be operated to turn and lift said pattern; section I i 17 designates a foot lever, in the form of ayoke, pivoted at 18' to the post;15 and provided' ith a Weight 19 at its rear end. Connectingbars 2O connect-the foot lever 1.7"" "the vertically movable sleeve 13, and a, l t bar 21 is connectedat its lower end to said foot lever. The upper end of the lift bar 21 extends through a slot 22 in the sleeve lii and lies belovvthe lift rod 16.

designates. a pinsecured to the lift bar 21 and engaging the sleeve 13 to maintain the free upper end ofsaid lift bar its r e y e i i e Anoperating rod 24 secured to the lift I rod 16 extends through the L-shapedslot ber' G to interlock the. lugs 11 with. the

. from each other.

7 tion from'the lower portion of the mold, at

and the connecting bars 20 and the bottom tends into the top pattern member as shown serving as a handle for turning the lift r0 16 as will be hereinafter described.

The parts may be moved to the position seen in Fig. 1 by the weighted. footlever,

pattern holder are then forced upwardly by said weighted lever, this upward movement being limited by suitable abutments, for ex; ample the head 11 may engage the flask support 3. The connecting bars 20 are pivotal'ly connected to the weighted lever 17 by pivot pins 20?.which may be inserted into any of the holes 2O inlever 17 to vary the downward movement of the pattern member A. The movement of the pattern member C may be varied by adjusting the lift bar 21, said bar being provided with a series of holes 21 adapted to receive the pivot pin 21. I

7 WVhen the weighted lever 17 occupies the position shown inFig. I, the lift bar 21 is located in its lowermost position and thetwo pattern sections which then engage each other maybe interlocked with each other byv shifting the operating rod 2 1 in the lower portion of slot 25, thereby turningthe lift rod 16 and the upper pattern mempattern member After the ramming operation, the operating rod 2 1 is turned in the L-shaped slot 25, so as to turn the lift rod 16, thereby turning thecireular upper pattern section about its axis to release it from the sand without rapping the pattern and without injuring the 'mold. hen-the lift rod' is turned to release the top pattern section, the lugs 11 carried by theibifurcated stem 10 are brought into regs istration with the notches 12 in the bottom pattern section to unlock the top pattern section from the bottom pattern section and the-pattern sections may then be separated The foot lever 17 is then operated to pull the links 20 downwardly thus withdrawing the bottom pattern secthe same time moving the lift 'bar'21 upwardly with the result of pushing the'top pattern section from the mold. The pat tern sections are then located in the position shown in Fig. II and the top pattern section C may be readily lifted from the rod- 16 to permit the removal of the flask member from the machine The lift rod 16 is provided witha guide pin 16 at its upper end, which guide pinexin Fig. I and, serves to guide said pattern member while it is being withdrawn from the sand.

The pattern holders are locked in the positions seen. in Fig. II by a latch dog 25' pivoted to the foot lever 17 and adapted to interlock with'the base 1 when the foot lemay readily drop sections.

Theliftrod 16 drops by gravity when the lift bar 21 moves. downwardly, and to prevent sand from interfering with v such movement by collecting between the lift rod and sleeve 18,the lift rod is provided with longitudinal grooves 26: through which sand and pass'out through the base 1. p I claim .1. A molding holders 7 for supporting separable pattern sections, a flask support adjacent to said pattern holders, for supporting a flask mem ber within which the pattern sections are supported, means for turning me of the pat tern holders to release one of the pattern members, and means for moving [said patternholders in different directions to draw one of. the pattern. sections from .i the upper portion of the flask member and to. draw the other pattern section from the lower portion of the fiaskmember. T

2. A molding machine comprising telescoping pattern holders adapted .to support veris depressed to separate 1 pattern? I vs machine comprising pattern separable pattern seotions,fia flask support for holdinga mold member around the separable pattern sections, means for turning one of the pattern holdersto release a patternsection from the mold member, and means foroperating said telescoping pattern holders to draw oneo'f the pattern "sec- I tions from the upper portion of the. mold member and to draw the' other pattern member from the lower portion of the mold member.

*3. molding machine comprising tele scoping patternholders adapted to support separable pattern sections, a flask support for holdinga mold member around the. separable pattern sections, means for turning one of the"patternholdersto interlock the separable pattei'nlfisectionsi with each other,

and means for; operating said telescoping pattern holders to draw one "of the pattern sections from the upperflpo rti'on of the mold member and. to draw the otherpattern 'member fromthe lower} portion of the mold.

member." g, g

4. A molding machinecomprisingtelescoping pattern holders adapted to support separable. pattern. sections, a .Qfl'askgsupport for holding a 'mold member around the separable pattern sections, 1 an operating device for shifting the pattern holders inopposite directions, and" means'fgfor locking-the" 6P? crating device to hold thepattern sections away fromeach other. a i l l 5. A molding machine comprising apattern holderadaptedQIto support a pattern member, a flask support for holding amold member around said pattern member,means for turning saidlpatternholder so as toturn the pattern member for the purpose de other and to unlock said separable pattern sections,

scribed, and means for moving said pattern holder to separate thepattern section from said mold member. w 6. A molding machine comprising telescoping pattern holders adapted to support a flask support for holding a mold member around the separable pattern sections, means for. operating one of said telescoping pattern holders to interlock said pattern sections with each pattern sections, and means for sliding said pattern holders to draw one of the pattern sections from the upper portion of the mold member and to draw the other pattern member from the lower portion of the mold member.

7. A molding machine comprising a pattern holder adapted to support a circular pattern member, a flask support for holding a mold member around said circular pattern member, and means for turning said pattern holder so as to turn the "circular pattern member about its aXis forthe purpose described. a

8. A molding machine comprising a rockable pattern holder adapted to hold a circular pattern member, a flask support for by releasing said circular pattern member from the mold member.

9. A device of the character described comprising pattern sections adapted to interlock with each other to form a sectional pattern, a flask member surrounding said pattern sections, and means for turning one of said pattern sections, to interlock it with the other, when the pattern sections are located in said flask member.

10. A'moldingmachine comprising telescoping members one of which constitutes a movable pattern holder, one of said members being provided with longitudinal grooves forming passageways between said telescoping members, a mold member adjacent to an end of said movable pattern holder, and means for operating said movable pattern holder.

WILLIAM A. DENNEY. .In the presence of OLIVER B. WILLIAMS, NEVEDA S. Pnooron.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ratents.

' Washington, D. C." 

